JPH06300210A - Method of and apparatus for manufacturing heat transfer tube construction - Google Patents

Abstract

PURPOSE:To mass-produce a tube panel of high quality in a small space. CONSTITUTION:A plurality of intermediate lattices 3 each having a number of apertures 3a are positioned. Inserted into these intermediate lattices 3 are heat transfer tubes 1 having been subjected to edge preparation. Then short-pass prevention plates 4 are mounted to make an integral tube group. The tube group is inverted 90 degrees to assume a position, in which a length of a header 2 is made vertical. Then while remaining in such position, an operation is conducted which includes welding of the header 2 and the heat transfer tubes 1, X-ray inspection, stress relieving annealing, non-destructive inspection, visual inspection and dimensional inspection of the weld. Finally, a tube panel A is subjected to pressure test with lengths of the heat transfer tubes 1 positioned in a vertical direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a heat transfer tube structure (hereinafter referred to as a tube panel) used for a heat exchange part of an exhaust heat recovery boiler in a combined cycle power plant and an apparatus thereof.

[0002]

2. Description of the Related Art Conventionally, a tube panel used in a boiler of this type is composed of a fin tube having a straight tube shape (hereinafter referred to as a heat transfer tube) and parts such as a header which is welded and fixed to both ends of the tube. A short tube (hereinafter referred to as a stub) that is composed of straight tube-shaped heat transfer tubes arranged on a plane and both ends of this heat transfer tube are grooved ) Are welded and fixed to form a tube panel as a heat exchange component, and then the joint is inspected by an X-ray inspection device, and finally the performance as a heat exchange pressure vessel is inspected by a pressure resistance test, A heat transfer tube structure having a heat exchanging function of an exhaust heat recovery boiler is manufactured by being integrated with a casing.

[0003]

However, in the above-mentioned procedure for assembling the tube panel, since a huge number of unit pipes are used, the unit pipes must be manually connected to the header and joined. Since the number of unit pipes is considerable, the welding work points become extremely huge, and accompanying this, finish processing is applied to each groove in advance so that accurate alignment with the pipe stub can be performed. However, it is difficult to achieve labor saving by mass production because there is a problem in that the inspection points of each joint have the same physical quantity and time and labor are consumed. Further, since the heat transfer tubes are arranged on a flat surface and welded, assembled, inspected and stress-relieved and annealed, a huge production space is required, and it is difficult to efficiently use the production space.

The present invention has been made in view of the above circumstances, and a method of manufacturing a heat transfer tube structure capable of improving quality and saving labor by mass production, and efficiently utilizing a production space, and The purpose is to provide the device.

[0005]

The method for manufacturing a heat transfer tube structure according to the present invention comprises, as a means for achieving the above object, a heat transfer tube as a unit tube body having a groove processed and a plurality of holes. It is inserted into an intermediate lattice plate having and is bound as a tube group, then the heat transfer tube tube end and the tube mover are welded and fixed in a posture in which the longitudinal direction of the tube mover is in the height direction, and integrated as a heat transfer tube structure. It is characterized in that the X-ray inspection and stress relief annealing of the heat transfer tube welded portion are carried out in the posture, and then the pressure resistance test for confirming the soundness of the pressure vessel is carried out.

In the method of manufacturing the heat transfer tube structure according to the present invention, it is preferable that the pressure resistance test is performed in a posture in which the longitudinal direction of the heat transfer tube is the height direction.

Further, the heat transfer tube structure manufacturing apparatus according to the present invention comprises, as means for achieving the above object, a first station for performing groove processing on both ends of the heat transfer tube as a unit tube, and the heat transfer tube, The second station to be inserted into the intermediate lattice plate having a large number of holes, the third station to attach the parts to integrate the heat transfer tube group, and then reverse the heat transfer tube group by 90 degrees, and the heat transfer tube group and the longitudinal direction The 4th station, which is integrated and welded as a heat transfer tube structure by aligning and welding the tube transfer in a position facing the height direction, and the X direction of the heat transfer tube welding part in a position where the longitudinal direction of the tube transfer is in the height direction. 5th station for line inspection, 6th station for mounting small parts without changing the posture of heat transfer tube structure, and stress relief annealing for heat transfer tube welds without changing the position of heat transfer tube structure 7th station And a ninth station for performing a non-destructive inspection without changing the posture of the heat transfer tube structure and a ninth station for performing a pressure resistance test for confirming the soundness of the pressure vessel. It is characterized by being manufactured by the method.

In the heat transfer tube structure manufacturing apparatus according to the present invention, a heat transfer tube groove processing apparatus is provided in the first station, and the heat transfer tube groove processing apparatus is provided with a screw drive pole with a claw and a movable beam. And a heat transfer tube loading device for picking up the heat transfer tubes one by one and setting them on the heat transfer tube supply holder, and a heat transfer tube end holder for cutting / beveling / On the heat transfer tube supply holder, it consists of a multi-purpose groove processing machine for polishing and removing chips, a feeding means for sending the heat transfer tube after processing to the second station, a screw drive pole with claws and a moving beam. It is preferable that the heat transfer tube is configured to include an unloading device that transfers the heat transfer tube to the transfer unit.

Further, the heat transfer tube groove processing device provided in the first station is installed at the lower end of the downwardly inclined heat transfer tube holding base and holds the heat transfer pipes one by one at the upstream end of the first inclined base. A first launching device for launching, a second launching device installed at the downstream end of the first tilting platform, holding one heat transfer tube each and launching to the upstream end of the second tilting platform, and on both sides of the second launching device, respectively. A multi-purpose beveling machine that is installed and is held by the second launching device for cutting, beveling, polishing, and removing chips from both ends of the heat transfer tube, and is installed at the downstream end of the second tilting table. A third launching device for holding one heat tube at a time and launching it to the upstream end of the third tilting table, and a heat transfer tube installed at the downstream end of the third tilting table and passed from the third tilting table to the second station. It is preferable that it comprises a feeding means for feeding.

Further, a heat transfer tube inserting device is provided in the second station, and the heat transfer tube inserting device is used for inserting the heat transfer tube into the intermediate grid plate and the heat transfer tube received from the first station. A heat transfer tube receiving lower support that supports from the lower surface side and sends it to the heat transfer tube insertion unit,
A lateral movement mechanism that laterally moves the heat transfer tube insertion unit and the heat transfer tube receiving lower support to position the heat transfer tube in the intermediate grid plate, and a plurality of heat transfer tube insertion units that are arranged at predetermined positions at the exit side of the heat transfer tube insertion unit An intermediate grid plate pedestal that positions and holds the lattice plates, and a heat transfer tube insertion lower support that is installed between the adjacent intermediate grid plate pedestals and supports the heat transfer tube being inserted into the intermediate lattice plate from the lower surface side, It is preferable to be composed of

Further, a transportation track continuously installed from at least the third station to the seventh station,
It is more preferable that the heat transfer tube structure is held in a posture in which the longitudinal direction of the tube approach is the height direction, and that a transport carriage that transports along the transport track is provided.

[0012]

In the method of manufacturing a heat transfer tube structure according to the present invention, the heat transfer tube is inserted into the intermediate lattice plate, the heat transfer tube is welded and fixed at the pipe end and the header, X-ray inspection, stress relief annealing, and pressure resistance test. Are continuously performed, and quality is improved and labor is saved by mass production. Further, after the heat transfer tubes are inserted into the intermediate lattice plate, the work is performed in a posture in which the longitudinal direction of the tube shift is the height direction, so that the production space can be efficiently used. At this time, by performing the pressure resistance test in a posture in which the longitudinal direction of the heat transfer tube is the height direction, it becomes easy to remove air and water, and it is possible to improve work efficiency.

Further, in the apparatus for manufacturing a heat transfer tube structure according to the present invention, a series of work from the groove processing of both ends of the heat transfer tube to the pressure resistance test is performed at each station from 1st to 9th. The heat pipe structure is manufactured in a sink system. For this reason, it is possible to improve the quality and save labor by mass production, and the heat transfer tube group is set to 9
Since it is inverted 0 degree and used for the subsequent work, it is possible to efficiently use the production space.

In the heat transfer tube structure manufacturing apparatus according to the present invention, a heat transfer tube groove processing device is provided in the first station, and the heat transfer tube groove processing device is used for the heat transfer tube loading device and the multipurpose groove processing. The machine, the feeding means, and the unloading device make it possible to take out the heat transfer tube directly from the heat transfer tube packaging box and perform the groove processing, and the main parts of the loading device and the unloading device. Can be shared.

Further, the heat transfer tube groove processing device provided in the first station is composed of three launching devices from first to third, a multipurpose groove processing device, and a feeding means. Transfer the heat tube from the first to the third
This can be performed by using the inclined table of the table, and the device configuration can be simplified.

Further, a heat transfer tube inserting device is provided in the second station, and the heat transfer tube inserting device includes a heat transfer tube inserting unit, a heat transfer tube receiving lower support, a lateral movement mechanism, an intermediate grid plate pedestal, and a heat transfer tube. By configuring with the insertion lower support, even if the heat transfer tube as a single component is a flexible structure that is easily bent, it is possible to quickly and safely insert the heat transfer tube into the determined position of the intermediate grid plate.

Further, by providing the transfer track and the transfer carriage, at least from the third station to the seventh station, the transfer carriage is simply moved along the transfer path to move the heat transfer tube structure in the longitudinal direction of the header. It is possible to carry the paper in a posture in which the height is in the height direction.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 2 shows the outer shape of the tube panel. This tube panel A has 70 to 120 heat transfer tubes 1.
The groove portion 1a is provided by being incorporated into both ends of each heat transfer tube 1, and each groove portion 1a is formed.
"a" is welded and fixed to the groove portion 2b at the tip of each stub 2a attached to the header 2 so as to be integrated as a pressure vessel having a heat exchange function.

As shown in FIG. 2, a plurality of intermediate grids 3 having holes 3a arranged in three stages are arranged at the intermediate portion in the longitudinal direction of the tube panel A to bundle the heat transfer tubes 1, and further to transfer the heat transfer tubes 1. A short-pass prevention plate 4 for preventing a short-pass of gas flowing on the outer surface of the heat pipe 1, a gas baffle 5 forming a gas passage, and the like are attached to form a tube panel single-piece component.

This tube panel single component has a length of 1
It has a size of 3 to 15 m, a width of 3 to 4 m, and a thickness of 0.3 to 0.5 m, and is composed of a heat transfer tube group having a property of being easily bent. Therefore, several hundred non-heat recovery boilers are installed. For this reason, a manufacturing method and a manufacturing facility for incorporating this product feeling and for producing a huge amount of material are required.

FIG. 1 shows an example of a procedure of a method of manufacturing a tube panel of a type in which three rows of stubs are attached to one header, which will be described below.

In the first stage of assembly, a plurality of intermediate grids 3 for binding the heat transfer tubes 1 as a tube group are arranged in the longitudinal direction of the heat transfer tubes 1. On the other hand, the heat transfer tube 1 has its total length determined,
Groove processing, deburring and cleaning are performed. Then, the heat transfer tube 1 is inserted into the holes 3 a of the intermediate grid 3. This insertion work is performed in a flat state (placed on the floor surface in the width direction of the tube panel A) so that the work is stably performed because the cores of the holes 3a of the plurality of intermediate lattices 3 are taken out. .

Next, the short-pass prevention plate 4 is attached and the heat transfer tube 1 is integrated. In the subsequent steps, the assembly work of the integrated tube panel A is performed.
In order to use the production space efficiently, the tube panel A is inverted by 90 degrees so that the longitudinal direction of the header 2 becomes the height direction. After that, the heat transfer tube 1 and the stub 2a of the header 2 are welded and fixed, and the tube panel A is completed as a heat transfer tube structure.

Next, welding defects are confirmed by X-ray inspection of the heat transfer tube welded portion, stress relief annealing is performed, and then nondestructive inspection (magnetic particle inspection or penetration inspection) is performed.

Next, parts such as the fixing clip and the gas baffle 5 are attached, and then the appearance and dimension are inspected. Finally, a pressure resistance test is performed to confirm the soundness of the pressure vessel. In this pressure resistance test, in consideration of air bleeding and drainage, the tube panel A is erected so that the longitudinal direction of the tube panel A is in the height direction.

The tube panel A is manufactured according to the procedure described above. However, since a huge amount of the tube panel A is efficiently assembled in a limited production space, a dedicated production is performed. It is manufactured by using a manufacturing apparatus of a flow production system equipped with a line and dedicated manufacturing equipment.

FIG. 3 shows a first embodiment of this manufacturing apparatus, which will be described below.

This manufacturing apparatus, as shown in FIG. 3, is a first station S1 for forming a groove on both ends of a heat transfer tube as a unit tube, and a second station for inserting the heat transfer tube into the holes of the intermediate lattice.
Station S2, 90 parts mounting / tube panel
Third station S3 for reversing the degree, fourth station S4 for aligning and welding the heat transfer tube and the header stub,
Fifth station S for X-ray inspection of heat transfer tube welds
5th station S for mounting small parts
6, 7th station S7 for carrying out stress relief annealing of heat transfer tube welds, 8th for carrying out nondestructive inspection (PT, MT)
It is composed of a station S8 and a ninth station S9 for carrying out a pressure resistance test, and the tube panel can be manufactured by a flow system.

As shown in FIG. 3, a multipurpose groove processing apparatus P is installed in the first station S1 for cutting the heat transfer tube for determining the overall length and groove processing of the heat transfer tube end. It is designed to be performed by the multipurpose groove processing device P. In this first station S1, as will be described in detail later, heat transfer tubes are automatically sent one by one from the heat transfer tube storage to the multipurpose groove processing device P, and after the cutting and processing are completed, the transfer device transfers It is designed to be conveyed to the automatic insertion device Q of the heat transfer tube in the 2 station S2.

In the second station S2, intermediate grids for bundling the heat transfer tubes are arranged at predetermined intervals, and the heat transfer tubes are inserted one by one into the holes of the intermediate grid by the automatic insertion device Q. This work, according to the pitch of the heat transfer tube arrangement,
When the insertion of one heat transfer tube is completed, it automatically moves one pitch and the insertion of the heat transfer tube is started again, and by repeating this operation, all the heat transfer tubes are inserted. Thus, the insertion of the heat transfer tube into one tube panel is completed.

The tube panel is conveyed to the third station S3 by a conveyor or a crane. In this third station S3, after the parts such as the short-pass prevention plate are attached, the flat panel tube is placed. The panel is turned 90 degrees by a jig or the like so that the longitudinal direction of the pipe is in the height direction. By this reversing work, the work space occupied by one tube panel is significantly reduced, and the work is performed in this posture after the fourth station S4.

A crane or the like is used to move to the fourth station S4. At this fourth station S4, the heat transfer tube and the header stub are welded by an automatic welding machine. There is. As a result, the tube panel has a structure that functions as a pressure vessel. Also, the tube panel is this 4th
The station S4 to the eighth station S8 are transported by the transportation facility R described later.

At the fifth station S5, an X-ray inspection of the heat transfer tube welded portion is carried out to confirm the soundness of the welded portion. This inspection is carried out by the exclusive use installed at the fifth station S5. It is performed by an X-ray inspection apparatus, and the inspection result is displayed on a television monitor by image processing so that the quality of the welded portion can be judged in real time.

At the sixth station S6, small parts are attached and the tube panel is completed as a part. Further, the seventh station S7 is a stress relief annealing station, and the stress relief annealing of the heat transfer tube welded portion is performed. In the eighth station S8, a nondestructive inspection (magnetic particle flaw detection inspection or penetration flaw detection inspection) after stress relief annealing of the heat transfer tube welded portion is carried out.
After that, the tube panel moves to the ninth station S9, which is a pressure resistance test station.
This movement is performed by a crane, etc., and the tube panel is erected so that the longitudinal direction of the heat transfer tube is in the height direction for draining the test water used during the pressure resistance test and bleeding air during the test. . In this state, the quality as a pressure vessel is confirmed and the tube panel is completed.

FIG. 4 shows a concrete example of the multipurpose groove processing device P installed in the first station S1, and FIG.
The procedure of the groove processing by this device P is shown.

As shown in FIG. 4, the multipurpose groove processing apparatus P includes an automatic loading apparatus 100 for taking out the heat transfer tube 1 from the storage, two multipurpose groove processing machines 200a installed on both sides of the heat transfer tube 1, 200b and unloading device 30 for taking out and moving the processed heat transfer tube 1
0 and a transfer conveyor 400.

The automatic loading device 100 includes a plurality of screw drive poles 10 arranged in the longitudinal direction of the heat transfer tube 1.
1 and a movable beam 102 of a crane type, and a claw 101a is provided at the tip of the screw drive pole 101. Then, the heat transfer tubes 1 stored in the heat transfer tube packaging box of the storage are taken out one by one by the claws 101a of the screw driving poles 101, lifted by the screw driving, and horizontally moved by the moving beam 102, so that the multipurpose opening is performed. The pre-processing machines 200a and 200b are set on the heat transfer tube supply holding table 201.

Further, the unloading device 300
As shown in FIG. 4, the automatic loading device 10
The screw drive pole 301 having the same structure as that of the No. 0 and having a claw 301a at the tip is used for the automatic loading device 100.
The movable beams 102 are shared and horizontally moved. The heat transfer tube 1 after being processed by the multipurpose groove machines 200a and 200b is the unloading device 3
The transfer heat transfer tube 1 is unloaded at 00 and transferred to the transfer conveyor 400. The transferred heat transfer tube 1 is transferred to the automatic insertion device Q of the second station S2 by the transfer conveyor 400. Has become.

Both of the multipurpose groove machines 200a, 200
In the first step of groove processing by b, as shown in FIG. 5, one end of the heat transfer tube 1 is applied to the tube end reference jig 202 for confirmation of the heat transfer tube 1, and a reference for determining the total length is determined. To be Then, in the second step, both ends of the heat transfer tube 1 are fixed by the clamps 203.

In the third step, both ends of the heat transfer tube 1 are cut by the cutting tool 204a taken out from the tool changing device 204, and the total length of the heat transfer tube 1 is determined. Next 4th
In the step, the grooved tool post 204b is taken out from the tool changer 204, and the pipe end is processed by the cutting tool 204c set on the tool post 204b. Further, after the groove processing, in the fifth step, the outer surface of the pipe end is polished and replaced with the wire brush tool 204d for polishing.
Then, finally, the chip suction machine 204e sucks and removes the chips, and a series of groove processing is completed.

FIG. 6 shows an example of the automatic insertion device Q installed in the second station S2. The automatic insertion device Q includes a heat transfer tube insertion unit 500, a heat transfer tube receiving lower support 600, and an intermediate grid support. 700 and a heat transfer tube insertion lower support 800.

As shown in FIG. 6, the heat transfer tube insertion unit 500 and the heat transfer tube receiving lower support 600 have a first support.
It is arranged parallel to the conveyor 400 of the station S1, and these are rail surface plates 500a, 600.
a, 600b and integrally move sideways, and convey conveyor 4
The heat transfer tube 1 above 00 is transferred. The transferred heat transfer tube 1 is inserted through a hole at one end of the intermediate grid 3. When one heat transfer tube 1 is inserted, the heat transfer tube insertion unit 500 and the heat transfer tube receiving lower support 600 become the rail surface plates 500a, 600a, 6
The heat transfer tubes 1 received from the conveyer 400 are inserted into the holes of the intermediate grid 3 which are offset by one pitch. In this insertion operation, the upper row of the intermediate grid is inserted first, and then the lower row is inserted.

As shown in FIG. 6, the heat transfer tube insertion lower supports 800 are respectively arranged between the adjacent lattice supports 700, and when the heat transfer tubes 1 are inserted into the holes of the intermediate lattice 3. The heat transfer tube 1 is supported from the lower surface side so that the heat transfer tube 1 does not bend and enter the holes of the next intermediate grid 3.

FIGS. 7 and 8 show the fourth station S4.
8 shows an example of a transfer facility R for performing a flow work between the fourth station S8 and the eighth station S8. The transfer facility R includes a plurality of parallel conveyors 900 arranged from the fourth station S4 to the eighth station S8. And a transport carriage 910 that moves on the conveyor 900. The tube panel A is fixed on the transport carriage 910 in a posture in which the longitudinal direction of the header 2 is the height direction. ing.

However, since all the operations from the groove processing of the heat transfer tube 1 as a unit tube body to the pressure resistance test of the tube panel A are continuously performed, the quality is improved and the labor saving is achieved by mass production. You can Further, since the tube panel A is conveyed between the fourth station S4 and the eighth station S8 in a posture in which the longitudinal direction of the header 2 is the height direction, the production space can be efficiently used. .

In the manufacturing apparatus of the first embodiment, the case where the conveyor 900 is used as the transfer facility R has been described, but other transfer tracks such as rails may be used.

In the manufacturing apparatus of the first embodiment, the case where the stations and the manufacturing equipment are linearly and continuously arranged has been described. However, depending on the production space or the like, an L-shaped shape, a U-shaped shape or the like may be used. It may be arranged at.

9 to 15 show a manufacturing apparatus according to the second embodiment of the present invention, which will be described below.

In FIG. 10, reference numeral 1001 is a base, on which a work holding base 1002 is arranged with a slight downward slope toward the right in the drawing, and on the work holding base 1002. A large number of heat transfer tubes 1 as unit tubes are arranged side by side.

On the downstream side of the work holding table 1002,
As shown in FIG. 10, a first tilting table 1003, a second tilting table 1004, and a third tilting table 1005 are sequentially arranged. At the upstream end of each tilting table 1003, 1004, 1005, a receiving metal fitting 1006a, A first launch device 1006, a second launch device 1007 having 1007a and 1008a,
And a third launch device 1008, respectively. And these launch devices 1006, 1007, 1
By 008, each heat transfer tube 1 is attached to each tilting table 1003.
It is designed to be launched at the upstream ends of 1004 and 1005.

As shown in FIG. 9, multipurpose groove machines 200a and 200b having the same structure as that of the first embodiment are arranged at both sides of the second launching device 1007, and are held by receiving brackets 1007a. As shown in FIGS. 14 and 15, the heat transfer tube 1 having a groove 1 is provided at both ends thereof.
a is processed.

As shown in FIG. 10, a heat transfer tube elevating device 1009 for receiving the heat transfer tube 1 rolling on the third tilt table 1005 is provided at the downstream end of the third tilt table 1005. The heat transfer tube elevating device 1009 is a heat transfer tube inserting device 1 integrally provided on the first moving conveyor 1010.
The heat transfer tube 1 is transferred to 011.

As shown in FIG. 9, a plurality of heat transfer tube inserting devices 1011 are arranged in the longitudinal direction of the heat transfer tube 1, and the heat transfer tube inserting devices 1011 are arranged on the second moving conveyor 1012.
Push the heat transfer tube 1 toward the intermediate grid 3 installed above,
The heat transfer tubes 1 are inserted into the holes of the intermediate grid 3 one by one to form a tube group Y into blocks.

At the downstream end of the second moving conveyor 1012,
As shown in FIGS. 9 and 11, the reversing device 1013 is installed, and the second moving conveyor 1012 is placed in a flat state.
The tube group Y conveyed above is inverted by 90 degrees by the inversion device 1013, and the posture thereof is changed to a posture in which the longitudinal direction of the pipe puller 2 described later is oriented in the height direction. It is supposed to be retained.

At a position adjacent to the downstream side of the second moving conveyer 1012, as shown in FIGS. 9 and 12, a transfer facility R having the same structure as that of the first embodiment is installed. Both sides of the heat transfer tube automatic welding device 1014
a, 1014b and X-ray inspection apparatus 1015a, 101
5b are sequentially arranged. Then, the heat transfer tube 1 and the header 2 are moved by the heat transfer tube automatic welding devices 1014a and 1014b.
X-ray inspection device 1015
a, 1015b, the quality inspection of the heat transfer tube welded portion is performed.

On the downstream side of the second moving conveyor 1012,
As shown in FIGS. 9 and 13, the water pressure test device 1016
The tube panel A is transported to the downstream end of the second moving conveyor 1012 and is transferred to the water pressure testing device 1016 by a crane or the like. It is designed to be performed by the test apparatus 1016.

Next, the operation of this embodiment will be described.

When manufacturing the tube panel A, first, a large number of heat transfer tubes 1 as straight tube-shaped unit tubes are arranged on the work holding table 1002. Work holder 100
Since No. 2 has a downward slope toward the first launch device 1006, the heat transfer tube 1 rolls on the work holding table 1002 and is sequentially sent to the first launch device 1006 side.

When the first launching device 1006 is started in this state, one heat transfer tube 1 held by the receiving metal fitting 1006a is launched to the upstream end of the first tilting table 1003.
The one heat transfer tube 1 launched is the first tilting table 1003.
It rolls up and is sent to the second launch device 1007, and is held by its receiving metal fitting 1007a. Then, the multipurpose groove processing machines 200 located on both sides of the second launch device 1007.
a, 200b act | operate, and the groove part 1a is processed in the both ends of the heat transfer tube 1. After the groove processing, the heat transfer tube 1 is connected to the second launch device 10
It is launched to the upstream end of the second tilt table 1004 by 07. The launched heat transfer tube 1 rolls on the second tilt table 1004 and is sent to the third launch device 1008.

The third launching device 1008 operates at a fixed timing, and the single heat transfer tube 1 held by the receiving metal fitting 1008a is launched to the upstream end of the third tilting table 1005. The heat transfer tube 1 launched is the third tilt table 100.
5 and is held by the heat transfer tube elevating device 1009 at the downstream end thereof. Then, the heat transfer tube elevating device 1009 transfers the heat transfer tube to the heat transfer tube inserting device 1011.

The heat transfer tube 1 held by the heat transfer tube inserting device 1011 is sent out in the longitudinal direction and inserted into the holes of the intermediate lattice 3, and is blocked as a tube group Y. The blocked tube group Y moves on the second moving conveyor 1012 and is inverted 90 degrees by the inverting device 1013.

The tube group Y inverted by 90 degrees is lifted by a crane or the like, and set on the transport carriage 910 of the transport facility R. Then, on this transport carriage 910, the groove alignment with the header 2 having the stub attached in advance is performed,
The heat transfer tube automatic welding devices 1014a and 1014b weld and fix. Thereby, the tube panel A as a pressure container is manufactured.

The manufactured tube panel A is further transported by the transport facility R, and the X-ray inspection apparatus 1015a,
The quality inspection of the welded joint is performed by 1015b. Thereafter, the tube panel A is hoisted by a crane or the like, and is located on the downstream side of the transfer facility R.
16 and the performance as a pressure vessel is confirmed by a pressure resistance test.

Therefore, the transfer of the heat transfer tube 1 until the insertion of the intermediate grid 3 of the heat transfer tube 1 can be performed by rolling the heat transfer tube 1, and the structure of the apparatus can be simplified.

[0066]

As described above, in the method of manufacturing the heat transfer tube structure according to the present invention, the work from insertion of the heat transfer tube to the intermediate grid plate to the pressure resistance test is continuously performed. It is possible to improve quality and save labor by mass production. Further, after the heat transfer tubes are inserted into the intermediate lattice plate, the work is performed in a posture in which the longitudinal direction of the tube shift is the height direction, so that the production space can be efficiently used.

In the heat transfer tube structure manufacturing method according to the present invention, the pressure resistance test is performed in a posture in which the longitudinal direction of the heat transfer tube is in the height direction, whereby air bleeding and water draining are facilitated. The work efficiency can be improved.

Further, in the apparatus for manufacturing a heat transfer tube structure according to the present invention, a series of operations from groove processing of both ends of the heat transfer tube to a pressure resistance test are performed at each of the first to ninth stations. Since the structure is manufactured by the sink method, it is possible to improve the quality and save labor by mass production, and the heat transfer tube group is turned 90 degrees at the third station to be used for the subsequent work. Can be used efficiently.

In the heat transfer tube structure manufacturing apparatus according to the present invention, a heat transfer tube groove processing device is provided in the first station, and the heat transfer tube groove processing device is used for the heat transfer tube loading device and the multipurpose groove processing. The heat transfer tube can be directly taken out from the heat transfer tube packaging box and groove processed by configuring the machine, the feeding means, and the unloading device, and the main part of the loading device and the unloading device is shared. The simplification of the device configuration can simplify the device configuration.

In addition, the heat transfer tube groove processing device provided in the first station is composed of three launching devices, first to third, a multipurpose groove processing device, and a feeding means. Transfer the heat tube from the first to the third
Since it can be performed by rolling with the inclined table of the table, the device configuration can be simplified.

Further, a heat transfer tube inserting device is provided in the second station, and the heat transfer tube inserting device is provided with a heat transfer tube inserting unit, a heat transfer tube receiving lower support, a lateral movement mechanism, an intermediate grid plate pedestal, and a heat transfer tube. By configuring with the insertion lower support, even if the heat transfer tube is a flexible structure that is easily bent, it can be surely and reliably inserted into the determined position of the intermediate grid plate.

Further, by providing the transfer track and the transfer carriage, at least from the third station to the seventh station, the transfer carriage is moved along the transfer path, and the heat transfer tube structure and the longitudinal direction of the header are set. Can be conveyed in the posture in which the height is in the height direction.

[Brief description of drawings]

FIG. 1 is a procedure diagram showing a method for manufacturing a heat transfer tube structure according to the present invention.

FIG. 2 is an explanatory diagram showing a configuration of a tube panel.

FIG. 3 is a perspective view showing an apparatus for manufacturing a heat transfer tube structure according to the first embodiment of the present invention.

FIG. 4 is a perspective view showing a heat transfer tube groove processing device.

FIG. 5 is a diagram showing a procedure for processing a heat transfer tube end.

FIG. 6 is a perspective view showing a heat transfer tube insertion device.

FIG. 7 is a plan view of the transportation facility.

FIG. 8 is a configuration diagram of FIG. 7 viewed from the left.

FIG. 9 is an overall configuration diagram of a heat transfer tube structure manufacturing apparatus according to a second embodiment of the present invention viewed from above.

FIG. 10 is a view on arrow XX in FIG. 9.

11 is a view taken along the line XI-XI of FIG.

12 is a view taken along line XII-XII in FIG.

13 is a view taken along the line XIII-XIII in FIG.

FIG. 14 is a configuration diagram of a heat transfer tube.

FIG. 15 is an enlarged partial sectional view of the XV portion of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat transfer tube 2 Pipe 3 Intermediate hole 3a Hole 4 Short path prevention plate 5 Gas baffle 100 Loading device 101,301 Screw drive pole 101a, 301a Claw 102 Moving beam 200a, 200b Multipurpose groove machine 201 Heat transfer tube supply holder 300 Unloading device 400 Transfer conveyor 500 Heat transfer tube insertion device 500a, 600a, 600b Rail surface plate 600 Heat transfer tube receiving lower support 700 Intermediate grid support 800 Heat transfer tube insertion lower support 900 Conveyor 910 Transfer carriage 1002 Work holding stand 1003 First tilting stand 1004 2nd ramp 1005 3rd ramp 1006 1st launch device 1007 2nd launch device 1008 3rd launch device 1009 Heat transfer tube elevating device 1010 1st moving conveyor 1011 Heat transfer tube insertion device 101 Second moving conveyor 1013 Reversing device 1014a, 1014b Automatic heat transfer tube welding device 1015a, 1015b X-ray inspection device 1016 Water pressure test device A Tube panel Y Tube group S1 1st station S2 2nd station S3 3rd station S4 4th station S5 4th 5 station S6 6th station S7 7th station S8 8th station S9 9th station P Multipurpose groove processing device Q Automatic insertion device R Conveying equipment

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadashi Washizuka 2-4, Suehiro-cho, Tsurumi-ku, Yokohama-shi, Kanagawa Toshiba Keihin Office

Claims (7)

[Claims] 1. A heat transfer tube as a unit tube body which has been groove-processed is inserted into an intermediate lattice plate having a large number of holes to be bundled as a tube group, and then the heat transfer tube tube end and a pipe header are connected to each other. Welded and fixed in a posture in which the longitudinal direction of the shift is the height direction and integrated as a heat transfer tube structure, then X-ray inspection and stress relief annealing of the heat transfer tube welded portion are carried out in the same posture, and then as a pressure vessel. A method of manufacturing a heat transfer tube structure, comprising performing a pressure resistance test for confirming soundness. 2. The method of manufacturing a heat transfer tube structure according to claim 1, wherein the pressure resistance test is performed in a posture in which a longitudinal direction of the heat transfer tube is a height direction. 3. A first station that performs groove processing on both ends of a heat transfer tube as a unit tube body, a second station that inserts the heat transfer tube into an intermediate lattice plate having a large number of holes, and a component is attached to transfer the heat. After integrating the heat transfer tube group, the third station for reversing the heat transfer tube group by 90 degrees and the heat transfer tube group are aligned and welded with the header with the longitudinal direction facing the height direction. 4th station that is integrated as an object, 5th station that conducts X-ray inspection of heat transfer tube welds in a posture in which the longitudinal direction of the pipe shift is the height direction, and small parts without changing the posture of the heat transfer tube structure Attaching the 6th
A station and a seventh station for performing stress relief annealing of the heat transfer tube weld without changing the attitude of the heat transfer tube structure,
Non-destructive inspection without changing the posture of heat transfer tube structure No. 8
An apparatus for manufacturing a heat transfer tube structure, comprising: a station; and a ninth station for performing a pressure resistance test for confirming the soundness of the pressure vessel, wherein the heat transfer tube structure is manufactured by a flow system. 4. The first station is provided with a heat transfer tube groove processing device, and the heat transfer tube groove processing device is composed of a screw drive pole with a claw and a moving beam, and the heat transfer tubes are taken out one by one. A heat transfer tube loading device that is set on the supply holding table, and a multipurpose groove processing machine that is installed on both sides of the heat transfer tube supplying and holding table and performs cutting, beveling, polishing, and chip removal of the end of the heat transfer tube. A unloading device for delivering the processed heat transfer tube to the second station, a screw drive pole with a claw, and a moving beam, and transferring the heat transfer tube on the heat transfer tube supply holding table to the transfer means. It has, The manufacturing apparatus of the heat-transfer pipe structure of Claim 3 characterized by the above-mentioned. 5. The first station is provided with a heat transfer tube groove processing device, and the heat transfer tube groove processing device is installed at a lower end of a downwardly inclined heat transfer tube holding base and holds the heat transfer tubes one by one. A first launching device for launching to the upstream end of the first tilting table;
A second launching device installed at the downstream end of the tilting table and holding one heat transfer tube and launching it to the upstream end of the second tilting table, and a second launching device provided on both sides of the second launching device. A multi-purpose groove machine for cutting, beveling, polishing, and removing chips from both ends of the heat transfer tube that is held, and a heat transfer tube that is installed at the downstream end of the second tilting table and holds one heat transfer tube at a time. Three
A third launching device for launching to the upstream end of the tilting platform, and a feeding means installed at the downstream end of the third tilting platform for feeding the heat transfer tube transferred from the third tilting platform to the second station,
The heat transfer tube structure manufacturing apparatus according to claim 3, further comprising: 6. The second station comprises a heat transfer tube inserting device, wherein the heat transfer tube inserting device inserts the heat transfer tube into the intermediate grid plate, and the heat transfer tube received from the first station. A heat transfer tube receiving lower support that is supported from the lower surface side and sends to the heat transfer tube inserting unit, and a lateral movement mechanism that horizontally moves the heat transfer tube inserting unit and the heat transfer tube receiving lower support to position and insert the heat transfer tube into the intermediate grid plate. , A plurality of intermediate grid plates are arranged at a predetermined position at the exit side of the heat transfer tube insertion unit, and each intermediate grid plate is positioned and held between the intermediate grid plate pedestal and an adjacent intermediate grid plate pedestal. The heat transfer tube insertion lower support for supporting the heat transfer tube being inserted into the lower surface side from the lower surface side, and the heat transfer tube structure manufacturing apparatus according to claim 3, 4, or 5. 7. A transfer track continuously installed from at least the third station to the seventh station and a heat transfer tube structure are held in a posture in which the longitudinal direction of the header is in the height direction, and the transfer track is provided on the transfer track. 7. A manufacturing vehicle for a heat transfer tube structure according to claim 3, 4, 5, or 6, further comprising: